The product equipped with advanced ultrasonic sound technology enhances the effect of driving away dogs over longer distances, so you don't have to worry about you and your pets being attacked by a dog. Features: 【Wide Application】This dog repeller will help you keep away from the dog when you encounter a dog trying to attack your dog. In addition, the product is equipped with advanced ultrasonic sound technology, which can be heard by dogs, so it can be used as a dog training device to help you train your dog. In addition, this product also has the function of lighting with a high-brightness flashlight. 【3-Mode Flashlight】The product has a powerful flashlight, which can achieve three modes of constant light, strobe light and SOS, which is convenient for you when you walk your dog outside at night. In addition, the flashlight has an intelligent light sensor, which can automatically adjust its brightness according to the environment. 【Non-slip Seeds and Portable】The back of the dog